Cuban Denies He Promised To Keep Deal Info Confidential

Law360, Dallas (October 3, 2013, 8:22 PM EDT) -- In his first day on the witness stand Thursday, Dallas Mavericks owner Mark Cuban rebuffed the government's claims that he dumped his stock in an online search company after learning inside information about a planned private financing deal, testifying that he hadn't agreed to keep the information confidential.

Cuban, facing a civil insider trading claim from the U.S. Securities and Exchange Commission, said he did not believe information he learned in June 2004 about a private investment in public equity deal planned by Canadian search engine...